+

US6927953B2 - Auxiliary rotation-system starter - Google Patents

Auxiliary rotation-system starter Download PDF

Info

Publication number
US6927953B2
US6927953B2 US10/289,430 US28943002A US6927953B2 US 6927953 B2 US6927953 B2 US 6927953B2 US 28943002 A US28943002 A US 28943002A US 6927953 B2 US6927953 B2 US 6927953B2
Authority
US
United States
Prior art keywords
fuse
auxiliary
coil portion
starter motor
starter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime, expires
Application number
US10/289,430
Other versions
US20040012902A1 (en
Inventor
Hirohide Ikeda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Assigned to MITSUBISHI DENKI KABUSHIKI KAISHA reassignment MITSUBISHI DENKI KABUSHIKI KAISHA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: IKEDA, HIROHIDE
Publication of US20040012902A1 publication Critical patent/US20040012902A1/en
Application granted granted Critical
Publication of US6927953B2 publication Critical patent/US6927953B2/en
Adjusted expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/10—Safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits specially adapted for starting of engines
    • F02N11/087—Details of the switching means in starting circuits, e.g. relays or electronic switches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
    • F02N15/06—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
    • F02N15/067—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement the starter comprising an electro-magnetically actuated lever
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
    • H01H51/065—Relays having a pair of normally open contacts rigidly fixed to a magnetic core movable along the axis of a solenoid, e.g. relays for starting automobiles

Definitions

  • the present invention relates to an auxiliary rotation-system starter which is used in starting an engine of an automobile for example.
  • FIG. 8 is an electrical connection diagram showing a configuration of a conventional auxiliary rotation-type starter disclosed in Japanese Utility Model Laid-open No. Sho 57-174760.
  • a starter motor 102 is electrically connected to a battery power source 105 through a main circuit portion 103 and an auxiliary circuit portion 104 connected in parallel with the main circuit portion 103 .
  • the main circuit portion 103 has a main contact portion 106 for enabling or disabling the electrical connection between the battery power source 105 and the starter motor 102 .
  • the auxiliary circuit portion 104 has a driving coil portion 107 for opening or closing the main contact portion 106 .
  • the auxiliary circuit portion 104 is provided with a relay 108 for enabling or disabling the electrical connection between the battery power source 105 and the driving coil portion 107 .
  • the main circuit portion 103 is provided with a fuse 109 .
  • the fuse 109 is disposed between the main contact portion 106 and the starter motor 102 .
  • a pinion gear 110 which serves to be moved axially along with the opening or closing of the main contact portion 106 is coupled to the starter motor 102 .
  • a ring gear 111 which is coupled to an engine is disposed in the vicinity of the pinion gear 110 .
  • the pinion gear 110 is engaged with the ring gear 111 due to the movement thereof resulting from the closing of the main contact portion 106 .
  • closing the relay 108 energizes and activates the driving coil portion 107 and the starter motor 102 , respectively.
  • the starter motor 102 is activated through the driving coil portion 107 , a relatively small torque is supplied to an output shaft of the starter motor 102 to put it into a state of auxiliary rotation.
  • the driving coil portion 107 is energized, closing of the main contact portion 106 starts along with the pinion gear 110 being moved towards the side of the ring gear 111 . As a result, the pinion gear 110 is moved as it is being auxiliarly rotated.
  • the pinion gear 110 is brought into contact with the surface of the ring gear 111 due to this movement. At this time, since this operation entails the auxiliary rotation, the pinion gear 110 is slid while being pressed against the surface of the ring gear 111 . At this time, when the teeth of the pinion gear 110 have reached the insertion position between the teeth of the ring gear 111 due to the sliding, the teeth of the pinion gear 110 are inserted between the teeth of the ring gear 111 so that the pinion gear 110 is engaged with the ring gear 111 . In addition, concurrently with the engagement, the main contact portion 106 is closed. Closing the main contact portion 106 causes a current to flow through the main circuit portion 103 to rotate the starter motor 102 at high speed, thereby cranking the engine.
  • the melting capacity of the fuse 109 provided in the main circuit portion 103 is set with the value of the current made to flow therethrough during cranking as the reference. With such capacity setting for the fuse 109 , however, no current during the auxiliary rotation is cut off.
  • the present invention has been made in order to solve the above-mentioned problems associated with the prior art, and it is, therefore, an object of the present invention to provide an auxiliary rotation-system starter which is capable of preventing a driving coil portion from being thermally damaged due to a long current flows during start-up.
  • an auxiliary rotation-system starter includes a starter motor, a main circuit portion having a main contact portion, an auxiliary circuit portion having a driving coil portion for opening or closing the main contact portion, and a fuse for cutting the current flow to the driving coil portion by fusing at a predetermined temperature.
  • the main circuit portion is connected between the starter motor and a power source.
  • the auxiliary circuit portion is connected in parallel with the main contact portion.
  • the fuse is provided in the auxiliary circuit portion.
  • FIG. 1 is an electrical connection diagram showing a configuration of an auxiliary rotation-system starter according to a first embodiment of the present invention
  • FIG. 2 is a sectional side elevation view of the auxiliary rotation-system starter of the first embodiment shown in FIG. 1 ;
  • FIG. 3 is a front view when viewed along an arrow A in FIG. 2 ;
  • FIG. 4 is an electrical connection diagram showing a configuration of an auxiliary rotation-system starter according to a second embodiment of the present invention.
  • FIG. 5 is a front view showing construction of the auxiliary rotation-system starter of the second embodiment shown in FIG. 4 ;
  • FIG. 6 is an electrical connection diagram showing a configuration of an auxiliary rotation-system starter according to a third embodiment of the present invention.
  • FIG. 7 is a front view showing construction of the auxiliary rotation-system starter of the third embodiment shown in FIG. 6 ;
  • FIG. 8 is an electrical connection diagram showing a configuration of a conventional auxiliary rotation-system starter.
  • FIG. 1 is an electrical connection diagram showing a configuration of an auxiliary rotation-system starter according to a first embodiment of the present invention.
  • a starter motor 3 is electrically connected to a power source 2 through both a main circuit 4 and an auxiliary circuit portion 5 connected in parallel with the main circuit portion 4 .
  • the main circuit 4 has a main contact portion 7 for enabling or disabling the electrical connection between the power source 2 and the starter motor 3 .
  • the auxiliary circuit portion 5 has a driving coil portion 8 for opening or closing the main contact portion 7 .
  • the auxiliary circuit portion 5 is provided with a fuse 6 , and a relay contact portion 13 for enabling or disabling the electrical connection formed from the power source 2 to the driving coil portion 8 and the starter motor 3 .
  • the fuse 6 is disposed between the power source 2 and the relay contact portion 13 .
  • the fuse 6 is electrically connected to the power source 2 through a connection terminal 32 and also is electrically connected to the relay contact portion 13 through the connection terminal 33 .
  • a start-up circuit portion 14 is electrically connected to the power source 2 .
  • the start-up circuit portion 14 is provided with a relay coil portion 15 for opening or closing the relay contact portion 13 , and a key switch 16 for enabling or disabling the electrical connection between the relay coil portion 15 and the power source 2 .
  • a holding coil portion 17 for opening or closing the main contact portion 7 and keeping the main contact portion 7 closed is connected in parallel with both the driving coil portion 8 and the starter motor 3 . It should be noted here that both the driving coil portion 8 and the holding coil portion 17 are electrically connected to the relay contact portion 13 through a connection terminal 34 .
  • the main contact portion 7 includes a power source side fixed contact 9 which is electrically connected to the power source 2 through a connection terminal 28 , a starter motor side fixed contact 10 which is electrically connected to the starter motor 3 through a connection terminal 29 , and a movable contact 11 which is movably provided in such a way as to be able to contact or part from both the power source side fixed contact 9 and the starter motor side fixed contact 10 .
  • the movable contact 11 is mounted to a rod-like movable portion 12 which serves to be driven by causing a current to flow through the driving coil portion 8 and the auxiliary coil portion 17 .
  • the relay contact portion 13 includes a first fixed contact 19 which is electrically connected to the power source 2 through a connection terminal 30 , a second fixed contact 20 which is electrically connected to the driving coil portion 8 through a connection terminal 31 , and a relay movable contact 21 which is movably provided in such a way as to be able to contact or part from both the first fixed contact 19 and the second fixed contact 20 .
  • the main coil portion 18 is constituted by the driving coil portion 8 and the holding coil portion 17 .
  • an electromagnetic switch 24 is constituted by the main contact portion 7 , the main coil portion 18 and the movable portion 12 .
  • a relay switch 37 is constituted by the relay contact portion 13 and the relay coil portion 15 .
  • FIG. 2 is a sectional side elevation view of the auxiliary rotation-system starter of the first embodiment shown in FIG. 1
  • FIG. 3 is a front view when viewed along arrow A of FIG. 2
  • the starter motor 3 is mounted together with the electromagnetic switch 24 to a housing 39 .
  • the pinion gear 23 which serves to be engaged with the ring gear 26 coupled to the engine is coupled to an output shaft of the starter motor 3 through an over-running clutch 22 .
  • the electromagnetic switch 24 is provided adjacent to the starter motor 3 in such a way that the axis of the movable portion 12 becomes parallel with the axis of the starter motor 3 .
  • the movable contact 11 is attached to one end portion 12 a of the movable portion 12 , and an engagement portion 25 having a small diameter portion 25 a and a disc portion 25 b is formed on the other end portion 12 b thereof.
  • the movable portion 12 and the output shaft of the starter motor 3 are coupled to each other through a lever 27 .
  • the lever 27 is pivotably provided on a pin member 36 which is disposed between the axis of the movable portion 12 and the axis of the starter motor 3 .
  • one end portion 27 a of the lever 27 is disposed in the small diameter portion 25 a of the engagement portion 25 , and the other end portion 27 b thereof is disposed between the starter motor 3 and the over-running clutch 22 .
  • the relay switch 37 is mounted to the housing 39 through a mounting member 40 .
  • the relay switch 37 is unitized loaded with the fuse 6 .
  • the fuse 6 has a meltable member 35 which can be melted due to rises in temperatures there at due to the current flow therethrough.
  • the meltable member 35 is adapted to fuse when a time period of the current flow through the main coil portion 18 is longer than that of the current flow therethrough in the normal auxiliary rotating operation. That is to say, the melting temperature of the meltable member 35 is set in such a way that the member 35 should fuse before the driving coil portion 8 has been thermally damaged due to the current flow.
  • the meltable member 35 is made of zinc (Zn: melting temperature of 420° C.) as a material having a lower melting temperature than that of copper (melting temperature of 1,083° C.).
  • the fuse 6 is provided so as to be exposed to the outside in order to allow exchange.
  • connection terminals 28 , 29 and 34 are all mounted to the electromagnetic switch 24 .
  • connection terminals 30 and 31 are both mounted to the fuse 6 .
  • each of these connection terminals 28 to 34 is constituted by a bolt and a nut.
  • the auxiliary rotation-system starter 1 constructed as described above operates in the start-up of an engine as follows. First of all, the key switch 16 is turned ON to cause a current to flow through the relay coil portion 15 . Then, the relay contact portion 13 is closed through the electromagnetic operation of the relay coil portion 15 due to that current flow. Upon closing the relay contact portion 13 , a current is supplied from the power source 2 to the starter motor 3 through the auxiliary circuit portion 5 . While this current flow drives the starter motor 3 , since the current is made to flow through the driving coil portion 8 as well which is connected in series with the starter motor 3 , a relatively small torque is supplied to the output axis of the starter motor 3 to provide an auxiliary rotating state.
  • the movable portion 12 is also moved through the electromagnetic operation of the driving coil portion 8 and the holding coil portion 17 .
  • the movable contact 11 of the main contact portion 7 is moved towards the power source side fixed contact 9 and the starter motor side fixed contact 10 , and the one end portion 27 a of the lever 27 is also moved to pivot around the pin member 36 while being engaged with the engagement portion 25 .
  • the over-running clutch 22 is pressed by the other end portion 27 b of the lever 27 to be moved together with the pinion gear 23 in the pressing direction.
  • the pinion gear 23 is brought into contact with the surface of the ring gear 26 .
  • the pinion gear 23 is slid while being pressed against the surface of the ring gear 26 .
  • the teeth of the pinion gear 23 are inserted between the teeth of the ring gear 26 so that the pinion gear 23 is engaged with the ring gear 26 .
  • the movable contact 11 of the main contact portion 7 also comes into contact with both the power source side fixed contact 9 and the starter motor side fixed contact 10 to close the main contact portion 7 .
  • the main contact portion 7 is not closed at all. In such a manner, if the state in which the main contact portion 7 is not closed, even though the current is made to flow through the auxiliary circuit portion 5 , i.e., the auxiliary rotating state continues, then the temperature of the auxiliary circuit portion 5 rises. Thereafter, the meltable member 35 of the fuse 6 is fused before the auxiliary circuit portion 5 becomes abnormally hot due to the rise in the temperature.
  • the fuse 6 is not provided in the main circuit portion 4 through which a large current is made to flow in the cranking state, but is provided in the auxiliary circuit portion 5 to which the driving coil portion 8 is connected, it is possible to set the cut-off capacity to the value of the current flowing through the driving coil portion 8 as the reference, and also it is possible to prevent the coil thin film of the driving coil portion 8 from being melted or thermally damaged with the value of the current flowing through the main circuit portion 4 in the cranking state being ensured.
  • the meltable member 35 of the fuse 6 is made of zinc having a lower melting temperature than that of copper, it is possible to suppress that thermal damage, etc, to the peripheral parts or components, e.g., a supporting member for the fuse 6 .
  • the meltable member 35 can be made in such a way that its temperature reaches its melting temperature due to the long current flow without its cross section being made extremely small, the cut-off capacity at a small level can be ensured while strength is maintained. As a result, for the meltable member 35 , the occurrence of cutting due to vibration for example is also suppressed.
  • the fuse 6 is mounted so as to be exposed to the outside, even when it fuses, it can be readily exchanged for a new one.
  • FIG. 4 is an electrical connection diagram showing a configuration of an auxiliary rotation-system starter according to a second embodiment of the present invention.
  • FIG. 5 is a front view showing construction of the auxiliary rotation-system starter of the second embodiment shown in FIG. 4 .
  • a fuse 6 in an auxiliary rotation-system starter 41 is provided between a relay contact portion 13 and a main coil portion 18 of an auxiliary circuit portion 5 . That is to say, a connection terminal 33 for the fuse 6 is electrically connected to a connection terminal 31 of a relay contact portion 13 , and a connection terminal 32 therefore is electrically connected to a terminal 34 of a main coil portion 18 .
  • connection terminal 28 and connection terminal 30 are electrically connected to each other without going through a fuse.
  • the fuse 6 is provided in the auxiliary circuit portion 5 of in the auxiliary rotation-system starter 41 as well, it is possible to set the cut-off capacity with the value of the current flowing through the drive coil portion 8 as the reference and to prevent the coil thin film of the driving coil portion 8 from being melted or thermally damaged with the value of the current flowing through the main circuit portion 4 in the cranking state being secured.
  • the meltable member 35 of the fuse 6 is made of zinc having a lower melting temperature than that of copper, it is possible to suppress thermal damage in peripheral parts or components, e.g., a supporting member for the fuse 6 , and the like. Moreover, since the meltable member 35 can be made in such a way that it reaches melting temperature due to long current flow without its cross section being made extremely small, the cut-off capacity can be ensured at a lower level while still maintaining strength. As a result, for the meltable member 35 , the occurrence of breakage due to vibration, for example, is also suppressed.
  • the fuse 6 is mounted so as to be exposed to the outside, even when it fuses, it can be readily exchanged for a new one.
  • FIG. 6 is an electrical connection diagram showing a configuration of an auxiliary rotation-system starter according to a third embodiment of the present invention.
  • FIG. 7 is a front view showing construction of the auxiliary rotation-system starter of the third embodiment shown in FIG. 6 .
  • a fuse 6 in an auxiliary rotation-system starter 51 is provided in an auxiliary circuit portion 5 .
  • the fuse 6 is provided between a driving coil portion 8 and a starter motor 3 . That is to say, a connection terminal 33 for the fuse 6 is electrically connected to the driving coil portion 8 , and a connection terminal 32 therefore is electrically connected to a connection terminal 29 .
  • the fuse 6 is not mounted to a relay switch 37 , but is mounted to an electromagnetic switch 24 . It should be noted here that connection terminal 28 and connection terminal 30 are electrically connected to each other without going through a fuse.
  • the auxiliary rotation-system starter 51 of the third embodiment offers the same effect as that of the first embodiment. Also, since the fuse 6 is mounted to the electromagnetic switch 24 , even when the relay switch 37 is not mounted on from the auxiliary rotation-system starter 51 , a generally used relay switch is connected to the auxiliary rotation-system starter 51 , whereby it is possible to prevent the auxiliary rotating state from being maintained for a long time. Consequently, any of the relay switches can be applied irrespective of specification as long as it has a contact point opening/closing capacity with which a current flowing through the auxiliary circuit portion 5 in the normal auxiliary rotating operation can be cut off.
  • the fuse 6 may also be mounted to the electromagnetic switch 24 , similar to the foregoing, any relay switch which are generally used may also be applied thereto.
  • the meltable member of the fuse may also be made of a material having a lower melting temperature than that of copper
  • the meltable member may be made of a material which is selected from the group consisting of zinc alloy, tin (Sn: melting temperature 232° C.), lead (Pb: melting temperature 327° C.), alloy thereof and aluminum (Al: melting temperature 660° C.) for example. Since the meltable member made of such a material has a larger cross section than that of the meltable member made of copper, both of anti-shock characteristics and the cut-off capacity are ensured. Consequently, the meltable member may be made of any of electrically conductive materials a melting temperature of which is in the range of about 200 to about 700° C.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

An auxiliary rotation-system starter includes a starter motor, a main circuit portion having a main contact portion, an auxiliary circuit portion having a driving coil portion for opening or closing the main contact portion, and a fuse for cutting the current flow to the driving coil portion by fusing at a predetermined temperature. The main circuit portion is connected between the starter motor and a power source. The auxiliary circuit portion is connected in parallel with the main contact portion. The fuse is provided in the auxiliary circuit portion.

Description

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an auxiliary rotation-system starter which is used in starting an engine of an automobile for example.
2. Description of the Related Art
FIG. 8 is an electrical connection diagram showing a configuration of a conventional auxiliary rotation-type starter disclosed in Japanese Utility Model Laid-open No. Sho 57-174760. Referring now to FIG. 8, in a conventional auxiliary rotation-system starter 101, a starter motor 102 is electrically connected to a battery power source 105 through a main circuit portion 103 and an auxiliary circuit portion 104 connected in parallel with the main circuit portion 103. The main circuit portion 103 has a main contact portion 106 for enabling or disabling the electrical connection between the battery power source 105 and the starter motor 102. The auxiliary circuit portion 104 has a driving coil portion 107 for opening or closing the main contact portion 106. The auxiliary circuit portion 104 is provided with a relay 108 for enabling or disabling the electrical connection between the battery power source 105 and the driving coil portion 107. In addition, the main circuit portion 103 is provided with a fuse 109. The fuse 109 is disposed between the main contact portion 106 and the starter motor 102.
A pinion gear 110 which serves to be moved axially along with the opening or closing of the main contact portion 106 is coupled to the starter motor 102. In addition, a ring gear 111 which is coupled to an engine is disposed in the vicinity of the pinion gear 110. The pinion gear 110 is engaged with the ring gear 111 due to the movement thereof resulting from the closing of the main contact portion 106.
Next, the operation of the auxiliary rotation-system starter 101 will hereinbelow be described. First of all, closing the relay 108 energizes and activates the driving coil portion 107 and the starter motor 102, respectively. At this time, since the starter motor 102 is activated through the driving coil portion 107, a relatively small torque is supplied to an output shaft of the starter motor 102 to put it into a state of auxiliary rotation. In addition, since the driving coil portion 107 is energized, closing of the main contact portion 106 starts along with the pinion gear 110 being moved towards the side of the ring gear 111. As a result, the pinion gear 110 is moved as it is being auxiliarly rotated.
The pinion gear 110 is brought into contact with the surface of the ring gear 111 due to this movement. At this time, since this operation entails the auxiliary rotation, the pinion gear 110 is slid while being pressed against the surface of the ring gear 111. At this time, when the teeth of the pinion gear 110 have reached the insertion position between the teeth of the ring gear 111 due to the sliding, the teeth of the pinion gear 110 are inserted between the teeth of the ring gear 111 so that the pinion gear 110 is engaged with the ring gear 111. In addition, concurrently with the engagement, the main contact portion 106 is closed. Closing the main contact portion 106 causes a current to flow through the main circuit portion 103 to rotate the starter motor 102 at high speed, thereby cranking the engine.
Although in such an auxiliary rotation-system starter 101, there is a fear that the temperature of the main circuit portion 103 and the auxiliary circuit portion 104 can become extremely high due to, for example long current flow during cranking, the overruns or the like, the fuse 109 provided in the main circuit portion 103 will fuse, thereby preventing this extremely high temperature state from occurring.
However, since the value of the current made to flow through the starter motor 102 during the cranking is larger than that of the current made to flow through the starter motor 102 during the auxiliary rotation, the melting capacity of the fuse 109 provided in the main circuit portion 103 is set with the value of the current made to flow therethrough during cranking as the reference. With such capacity setting for the fuse 109, however, no current during the auxiliary rotation is cut off. For this reason, in the case where the pinion gear 110 is not perfectly engaged with the ring gear 111 due, for example, to catching on an alien substances, scratches or the like for example so that the auxiliary rotation of the starter motor is continuously carried out, there is encountered the problem that the current is made to flow continuously through the driving coil portion 107 for a long time, causing the coil thin film to fuse.
SUMMARY OF THE INVENTION
In the light of the foregoing, the present invention has been made in order to solve the above-mentioned problems associated with the prior art, and it is, therefore, an object of the present invention to provide an auxiliary rotation-system starter which is capable of preventing a driving coil portion from being thermally damaged due to a long current flows during start-up.
According to the present invention, an auxiliary rotation-system starter includes a starter motor, a main circuit portion having a main contact portion, an auxiliary circuit portion having a driving coil portion for opening or closing the main contact portion, and a fuse for cutting the current flow to the driving coil portion by fusing at a predetermined temperature. The main circuit portion is connected between the starter motor and a power source. The auxiliary circuit portion is connected in parallel with the main contact portion. The fuse is provided in the auxiliary circuit portion.
Consequently, auxiliary rotating state is prevented from being maintained for a long time due to the fusing, which makes it possible to prevent the driving coil portion from being melted or thermally damaged.
BRIEF DESCRIPTION OF THE DRAWINGS
The above and other objects as well as advantages of the present invention will become clear from the following description of the preferred embodiments of the present invention with reference to the accompanying drawings, wherein:
FIG. 1 is an electrical connection diagram showing a configuration of an auxiliary rotation-system starter according to a first embodiment of the present invention;
FIG. 2 is a sectional side elevation view of the auxiliary rotation-system starter of the first embodiment shown in FIG. 1;
FIG. 3 is a front view when viewed along an arrow A in FIG. 2;
FIG. 4 is an electrical connection diagram showing a configuration of an auxiliary rotation-system starter according to a second embodiment of the present invention;
FIG. 5 is a front view showing construction of the auxiliary rotation-system starter of the second embodiment shown in FIG. 4;
FIG. 6 is an electrical connection diagram showing a configuration of an auxiliary rotation-system starter according to a third embodiment of the present invention;
FIG. 7 is a front view showing construction of the auxiliary rotation-system starter of the third embodiment shown in FIG. 6; and
FIG. 8 is an electrical connection diagram showing a configuration of a conventional auxiliary rotation-system starter.
 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The preferred embodiments of the preferred embodiments of the present invention will hereinafter be described in detail with reference to the accompanying drawings.
First Embodiment
FIG. 1 is an electrical connection diagram showing a configuration of an auxiliary rotation-system starter according to a first embodiment of the present invention. Referring now to FIG. 1, in an auxiliary rotation-system starter 1, a starter motor 3 is electrically connected to a power source 2 through both a main circuit 4 and an auxiliary circuit portion 5 connected in parallel with the main circuit portion 4. The main circuit 4 has a main contact portion 7 for enabling or disabling the electrical connection between the power source 2 and the starter motor 3. The auxiliary circuit portion 5 has a driving coil portion 8 for opening or closing the main contact portion 7. In addition, the auxiliary circuit portion 5 is provided with a fuse 6, and a relay contact portion 13 for enabling or disabling the electrical connection formed from the power source 2 to the driving coil portion 8 and the starter motor 3. The fuse 6 is disposed between the power source 2 and the relay contact portion 13. Also, the fuse 6 is electrically connected to the power source 2 through a connection terminal 32 and also is electrically connected to the relay contact portion 13 through the connection terminal 33.
In addition, a start-up circuit portion 14 is electrically connected to the power source 2. The start-up circuit portion 14 is provided with a relay coil portion 15 for opening or closing the relay contact portion 13, and a key switch 16 for enabling or disabling the electrical connection between the relay coil portion 15 and the power source 2.
Furthermore, a holding coil portion 17 for opening or closing the main contact portion 7 and keeping the main contact portion 7 closed is connected in parallel with both the driving coil portion 8 and the starter motor 3. It should be noted here that both the driving coil portion 8 and the holding coil portion 17 are electrically connected to the relay contact portion 13 through a connection terminal 34.
The main contact portion 7 includes a power source side fixed contact 9 which is electrically connected to the power source 2 through a connection terminal 28, a starter motor side fixed contact 10 which is electrically connected to the starter motor 3 through a connection terminal 29, and a movable contact 11 which is movably provided in such a way as to be able to contact or part from both the power source side fixed contact 9 and the starter motor side fixed contact 10. The movable contact 11 is mounted to a rod-like movable portion 12 which serves to be driven by causing a current to flow through the driving coil portion 8 and the auxiliary coil portion 17.
The relay contact portion 13 includes a first fixed contact 19 which is electrically connected to the power source 2 through a connection terminal 30, a second fixed contact 20 which is electrically connected to the driving coil portion 8 through a connection terminal 31, and a relay movable contact 21 which is movably provided in such a way as to be able to contact or part from both the first fixed contact 19 and the second fixed contact 20.
Here, the main coil portion 18 is constituted by the driving coil portion 8 and the holding coil portion 17. In addition, an electromagnetic switch 24 is constituted by the main contact portion 7, the main coil portion 18 and the movable portion 12. Moreover, a relay switch 37 is constituted by the relay contact portion 13 and the relay coil portion 15.
FIG. 2 is a sectional side elevation view of the auxiliary rotation-system starter of the first embodiment shown in FIG. 1, and FIG. 3 is a front view when viewed along arrow A of FIG. 2. Referring now to FIGS. 2 and 3, the starter motor 3 is mounted together with the electromagnetic switch 24 to a housing 39. The pinion gear 23 which serves to be engaged with the ring gear 26 coupled to the engine is coupled to an output shaft of the starter motor 3 through an over-running clutch 22. In addition, the electromagnetic switch 24 is provided adjacent to the starter motor 3 in such a way that the axis of the movable portion 12 becomes parallel with the axis of the starter motor 3. The movable contact 11 is attached to one end portion 12 a of the movable portion 12, and an engagement portion 25 having a small diameter portion 25 a and a disc portion 25 b is formed on the other end portion 12 b thereof.
In addition, the movable portion 12 and the output shaft of the starter motor 3 are coupled to each other through a lever 27. The lever 27 is pivotably provided on a pin member 36 which is disposed between the axis of the movable portion 12 and the axis of the starter motor 3. Moreover, one end portion 27 a of the lever 27 is disposed in the small diameter portion 25 a of the engagement portion 25, and the other end portion 27 b thereof is disposed between the starter motor 3 and the over-running clutch 22.
The relay switch 37 is mounted to the housing 39 through a mounting member 40. In addition, the relay switch 37 is unitized loaded with the fuse 6.
Here, the fuse 6 has a meltable member 35 which can be melted due to rises in temperatures there at due to the current flow therethrough. The meltable member 35 is adapted to fuse when a time period of the current flow through the main coil portion 18 is longer than that of the current flow therethrough in the normal auxiliary rotating operation. That is to say, the melting temperature of the meltable member 35 is set in such a way that the member 35 should fuse before the driving coil portion 8 has been thermally damaged due to the current flow. The meltable member 35 is made of zinc (Zn: melting temperature of 420° C.) as a material having a lower melting temperature than that of copper (melting temperature of 1,083° C.). The fuse 6 is provided so as to be exposed to the outside in order to allow exchange.
It should be noted here that the connection terminals 28, 29 and 34 are all mounted to the electromagnetic switch 24. In addition, the connection terminals 30 and 31 are both mounted to the fuse 6. Moreover, each of these connection terminals 28 to 34 is constituted by a bolt and a nut.
The auxiliary rotation-system starter 1 constructed as described above operates in the start-up of an engine as follows. First of all, the key switch 16 is turned ON to cause a current to flow through the relay coil portion 15. Then, the relay contact portion 13 is closed through the electromagnetic operation of the relay coil portion 15 due to that current flow. Upon closing the relay contact portion 13, a current is supplied from the power source 2 to the starter motor 3 through the auxiliary circuit portion 5. While this current flow drives the starter motor 3, since the current is made to flow through the driving coil portion 8 as well which is connected in series with the starter motor 3, a relatively small torque is supplied to the output axis of the starter motor 3 to provide an auxiliary rotating state. At this time, the movable portion 12 is also moved through the electromagnetic operation of the driving coil portion 8 and the holding coil portion 17. Along with the movement of the movable portion 12, the movable contact 11 of the main contact portion 7 is moved towards the power source side fixed contact 9 and the starter motor side fixed contact 10, and the one end portion 27 a of the lever 27 is also moved to pivot around the pin member 36 while being engaged with the engagement portion 25. Along with this pivotal movement, the over-running clutch 22 is pressed by the other end portion 27 b of the lever 27 to be moved together with the pinion gear 23 in the pressing direction.
Thereafter, the pinion gear 23 is brought into contact with the surface of the ring gear 26. At this time, since this movement entails the auxiliary rotation, the pinion gear 23 is slid while being pressed against the surface of the ring gear 26. At the time when the teeth of the pinion gear 23 have reached the insertion position between the teeth of the ring gear 26 through this sliding movement, the teeth of the pinion gear 23 are inserted between the teeth of the ring gear 26 so that the pinion gear 23 is engaged with the ring gear 26. At this time, the movable contact 11 of the main contact portion 7 also comes into contact with both the power source side fixed contact 9 and the starter motor side fixed contact 10 to close the main contact portion 7.
Since the potential difference barely develops across the connection terminals 29 and 30 of the driving coil portion 8 after the main contact portion 7 has been closed, only a small quantity of current required to keep the main contact portion 7 closed is made to flow through the holding coil portion 17, while most of the current is supplied to the starter motor 3 through the main circuit portion 4. At this time, a large torque is supplied to the output axis of the starter motor 3 to provide the cranking state.
In the case where the pinion gear 23 is not perfectly engaged with the ring gear 26 for some reason or other, e.g., deformation or the like of the pinion gear 23 or the ring gear 26, even if a current is made to flow through the auxiliary circuit portion 5, the main contact portion 7 is not closed at all. In such a manner, if the state in which the main contact portion 7 is not closed, even though the current is made to flow through the auxiliary circuit portion 5, i.e., the auxiliary rotating state continues, then the temperature of the auxiliary circuit portion 5 rises. Thereafter, the meltable member 35 of the fuse 6 is fused before the auxiliary circuit portion 5 becomes abnormally hot due to the rise in the temperature.
Consequently, in such an auxiliary rotation-system starter 1, even when the pinion gear 23 is not perfectly engaged with the ring gear 26 for some reason or other, the auxiliary rotating state is prevented from being maintained for a long time due to the fusing, which makes it possible to prevent the coil thin film of the driving coil portion 8 from being melted or thermally damaged.
In addition, since the fuse 6 is not provided in the main circuit portion 4 through which a large current is made to flow in the cranking state, but is provided in the auxiliary circuit portion 5 to which the driving coil portion 8 is connected, it is possible to set the cut-off capacity to the value of the current flowing through the driving coil portion 8 as the reference, and also it is possible to prevent the coil thin film of the driving coil portion 8 from being melted or thermally damaged with the value of the current flowing through the main circuit portion 4 in the cranking state being ensured.
In addition, since the meltable member 35 of the fuse 6 is made of zinc having a lower melting temperature than that of copper, it is possible to suppress that thermal damage, etc, to the peripheral parts or components, e.g., a supporting member for the fuse 6. Moreover, since the meltable member 35 can be made in such a way that its temperature reaches its melting temperature due to the long current flow without its cross section being made extremely small, the cut-off capacity at a small level can be ensured while strength is maintained. As a result, for the meltable member 35, the occurrence of cutting due to vibration for example is also suppressed.
In addition, since the fuse 6 is mounted so as to be exposed to the outside, even when it fuses, it can be readily exchanged for a new one.
Second Embodiment
FIG. 4 is an electrical connection diagram showing a configuration of an auxiliary rotation-system starter according to a second embodiment of the present invention. Also, FIG. 5 is a front view showing construction of the auxiliary rotation-system starter of the second embodiment shown in FIG. 4. Referring now to FIGS. 4 and 5, a fuse 6 in an auxiliary rotation-system starter 41 is provided between a relay contact portion 13 and a main coil portion 18 of an auxiliary circuit portion 5. That is to say, a connection terminal 33 for the fuse 6 is electrically connected to a connection terminal 31 of a relay contact portion 13, and a connection terminal 32 therefore is electrically connected to a terminal 34 of a main coil portion 18. It should be noted here that connection terminal 28 and connection terminal 30 are electrically connected to each other without going through a fuse.
Other constituent elements in the configuration are the same as those of the first embodiment.
Consequently, since the fuse 6 is provided in the auxiliary circuit portion 5 of in the auxiliary rotation-system starter 41 as well, it is possible to set the cut-off capacity with the value of the current flowing through the drive coil portion 8 as the reference and to prevent the coil thin film of the driving coil portion 8 from being melted or thermally damaged with the value of the current flowing through the main circuit portion 4 in the cranking state being secured.
In addition, since the meltable member 35 of the fuse 6 is made of zinc having a lower melting temperature than that of copper, it is possible to suppress thermal damage in peripheral parts or components, e.g., a supporting member for the fuse 6, and the like. Moreover, since the meltable member 35 can be made in such a way that it reaches melting temperature due to long current flow without its cross section being made extremely small, the cut-off capacity can be ensured at a lower level while still maintaining strength. As a result, for the meltable member 35, the occurrence of breakage due to vibration, for example, is also suppressed.
In addition, since the fuse 6 is mounted so as to be exposed to the outside, even when it fuses, it can be readily exchanged for a new one.
Third Embodiment
FIG. 6 is an electrical connection diagram showing a configuration of an auxiliary rotation-system starter according to a third embodiment of the present invention. Also, FIG. 7 is a front view showing construction of the auxiliary rotation-system starter of the third embodiment shown in FIG. 6. Referring now to FIGS. 6 and 7, a fuse 6 in an auxiliary rotation-system starter 51 is provided in an auxiliary circuit portion 5. In addition, the fuse 6 is provided between a driving coil portion 8 and a starter motor 3. That is to say, a connection terminal 33 for the fuse 6 is electrically connected to the driving coil portion 8, and a connection terminal 32 therefore is electrically connected to a connection terminal 29. In addition, the fuse 6 is not mounted to a relay switch 37, but is mounted to an electromagnetic switch 24. It should be noted here that connection terminal 28 and connection terminal 30 are electrically connected to each other without going through a fuse.
Other constituent elements in this configuration are the same as those of the first embodiment.
Consequently, the auxiliary rotation-system starter 51 of the third embodiment offers the same effect as that of the first embodiment. Also, since the fuse 6 is mounted to the electromagnetic switch 24, even when the relay switch 37 is not mounted on from the auxiliary rotation-system starter 51, a generally used relay switch is connected to the auxiliary rotation-system starter 51, whereby it is possible to prevent the auxiliary rotating state from being maintained for a long time. Consequently, any of the relay switches can be applied irrespective of specification as long as it has a contact point opening/closing capacity with which a current flowing through the auxiliary circuit portion 5 in the normal auxiliary rotating operation can be cut off.
It should be noted here that in the first and second embodiments as well, since in the auxiliary rotation-system starter, the fuse 6 may also be mounted to the electromagnetic switch 24, similar to the foregoing, any relay switch which are generally used may also be applied thereto.
In addition, in the above-mentioned first to third embodiments, since the meltable member of the fuse may also be made of a material having a lower melting temperature than that of copper, the meltable member may be made of a material which is selected from the group consisting of zinc alloy, tin (Sn: melting temperature 232° C.), lead (Pb: melting temperature 327° C.), alloy thereof and aluminum (Al: melting temperature 660° C.) for example. Since the meltable member made of such a material has a larger cross section than that of the meltable member made of copper, both of anti-shock characteristics and the cut-off capacity are ensured. Consequently, the meltable member may be made of any of electrically conductive materials a melting temperature of which is in the range of about 200 to about 700° C.
While the present invention has been particularly shown and described with reference to the preferred embodiments and the specified modifications thereof, it will be understood that various changes and other modifications will occur to those skilled in the art without departing from the scope and spirit of the invention. The scope of the invention is, therefore, to be determined solely by the appended claims.

Claims (4)

1. An auxiliary rotation-system starter, comprising:
a starter motor which is adapted to be driven by making a current to flow from a power source therethrough;
a main circuit portion connected between said starter motor and said power source and having a main contact portion;
an auxiliary circuit portion having a driving coil portion for opening or closing said main contact portion and connected in parallel with said main contact portion;
a holding coil portion which keeps said main contact portion closed and is connected to said auxiliary circuit portion; and
a fuse provided in said auxiliary circuit portion, for cutting off the current flow only to said driving coil portion and said holding coil portion by fusing at a predetermined temperature;
wherein said driving coil portion, said holding coil portion and said fuse are mounted on said starter motor.
2. An auxiliary rotation-system starter according to claim 1, wherein said fuse is provided between said starter motor and said driving coil portion.
3. An auxiliary rotation-system starter according to claim 1, wherein a melting temperature of said meltable member is set in such a way that said meltable member fuses before said driving coil portion is thermally damaged due to the current flow therethrough.
4. An auxiliary rotation-system starter according to claim 1, wherein said meltable member is made of a material having a melting temperature lower than that of copper.
US10/289,430 2002-07-16 2002-11-07 Auxiliary rotation-system starter Expired - Lifetime US6927953B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002207202A JP4161066B2 (en) 2002-07-16 2002-07-16 Auxiliary rotary starter
JP2002-207202 2002-07-16

Publications (2)

Publication Number Publication Date
US20040012902A1 US20040012902A1 (en) 2004-01-22
US6927953B2 true US6927953B2 (en) 2005-08-09

Family

ID=30437478

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/289,430 Expired - Lifetime US6927953B2 (en) 2002-07-16 2002-11-07 Auxiliary rotation-system starter

Country Status (2)

Country Link
US (1) US6927953B2 (en)
JP (1) JP4161066B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090251200A1 (en) * 2008-04-02 2009-10-08 Littlefuse, Inc. Master fuse module
US20110198862A1 (en) * 2010-02-18 2011-08-18 Denso Corporation Engine starter with improved fixing structure of auxiliary electromagnetic switch

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7067934B2 (en) * 2003-09-12 2006-06-27 Denso Corporation Starter with overheat protection device
EP2546206B1 (en) * 2005-05-16 2016-11-30 Nipro Corporation Vial and method for producing the same
JP4111219B2 (en) 2005-12-07 2008-07-02 三菱電機株式会社 Starter
US7982565B2 (en) 2007-06-29 2011-07-19 Remy Technologies, L.L.C. Integrated solenoid and ignition magnetic switch
EP2080897B1 (en) * 2008-01-18 2013-09-04 Denso Corporation Starter with increased mounting capability
US20090260944A1 (en) * 2008-04-21 2009-10-22 Tai-Her Yang Electromagnetic actuating device with driving and holding tapped coil
US8476997B2 (en) * 2010-09-02 2013-07-02 Prestolite Electric, Inc. Soft-start systems and methods for vehicle starters
KR101513296B1 (en) * 2013-11-21 2015-04-17 주식회사 포스코 Apparatus and method for controlling rolling process of wire rod
WO2017187493A1 (en) * 2016-04-26 2017-11-02 三菱電機株式会社 Electromagnetic switch device for starter
JP6416439B2 (en) * 2016-04-27 2018-10-31 三菱電機株式会社 Electromagnetic switch device for starter
CN107452550B (en) * 2016-05-31 2019-07-26 比亚迪股份有限公司 Relay
DE102019209811A1 (en) * 2019-07-04 2021-01-07 Robert Bosch Gmbh Switching element, switching device and method for operating the switching device
JP6869309B2 (en) * 2019-10-23 2021-05-12 三菱電機株式会社 Power converter and power converter integrated rotary electric machine
JP6972240B1 (en) 2020-06-25 2021-11-24 三菱電機株式会社 Electromagnetic switch for starter

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3783301A (en) * 1972-06-08 1974-01-01 Caterpillar Tractor Co Lockout circuit for engine starter system
JPS57174760A (en) 1981-04-20 1982-10-27 Nippon Telegr & Teleph Corp <Ntt> Partial erasing method of picture image
JPS57192646A (en) 1981-05-21 1982-11-26 Kayaba Ind Co Ltd Adjusting device for initial setting load of suspension spring in hydraulic bumper
JPH09273464A (en) 1996-02-09 1997-10-21 Hitachi Ltd Starter
US6024065A (en) * 1994-07-05 2000-02-15 Chrysler Corporation Starter motor control circuit and method
WO2000019091A1 (en) 1998-09-29 2000-04-06 Hitachi, Ltd. Engine starter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3783301A (en) * 1972-06-08 1974-01-01 Caterpillar Tractor Co Lockout circuit for engine starter system
JPS57174760A (en) 1981-04-20 1982-10-27 Nippon Telegr & Teleph Corp <Ntt> Partial erasing method of picture image
JPS57192646A (en) 1981-05-21 1982-11-26 Kayaba Ind Co Ltd Adjusting device for initial setting load of suspension spring in hydraulic bumper
US6024065A (en) * 1994-07-05 2000-02-15 Chrysler Corporation Starter motor control circuit and method
JPH09273464A (en) 1996-02-09 1997-10-21 Hitachi Ltd Starter
WO2000019091A1 (en) 1998-09-29 2000-04-06 Hitachi, Ltd. Engine starter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090251200A1 (en) * 2008-04-02 2009-10-08 Littlefuse, Inc. Master fuse module
US7990738B2 (en) 2008-04-02 2011-08-02 Littelfuse, Inc. Master fuse module
US20110198862A1 (en) * 2010-02-18 2011-08-18 Denso Corporation Engine starter with improved fixing structure of auxiliary electromagnetic switch
US9121382B2 (en) * 2010-02-18 2015-09-01 Denso Corporation Engine starter with improved fixing structure of auxiliary electromagnetic switch

Also Published As

Publication number Publication date
US20040012902A1 (en) 2004-01-22
JP2004052572A (en) 2004-02-19
JP4161066B2 (en) 2008-10-08

Similar Documents

Publication Publication Date Title
US6927953B2 (en) Auxiliary rotation-system starter
US4674344A (en) Engine starter
US5731638A (en) Starter motor having a two stage magnetic switch and current limiting member
US6028381A (en) Starter equipped with current interruption mechanism
JP4111219B2 (en) Starter
US5053908A (en) Psc motor start system
EP0060172A1 (en) Protection device for a motor of a hermetically sealed motor-compressor unit
EP0987434B1 (en) Current control device for an electrical engine starter motor and starter motor having such a device
EP1891325B1 (en) Method of controlling power supply to an electric starter
FR2651933A1 (en) Electric motor with electronic commutation having improved structure
EP3314711B1 (en) Motor vehicle starter having a thermal protection system
US20050007234A1 (en) Fusible alloy and thermal fuse
EP0244521B1 (en) Engine starter
JP3136619B2 (en) Overrun prevention device for starter
JPS60243364A (en) Starter
JPS61101671A (en) Control of starter and device thereof
EP1481163B1 (en) Starting system
JPH02290142A (en) Starter protective device for vehicle
JPH09273466A (en) Magnet switch excitation terminal for starter
JP3070477B2 (en) Magnetic switch for starter
JPS617525A (en) Magnetic switch for starter
FR3069981A1 (en) BROOM DOOR FOR MOTOR VEHICLE STARTER
JP2508670Y2 (en) Positive characteristic thermistor device
FR2719872A1 (en) Combustion engine starter motor with integrated overload protection
FR3006127A1 (en) ROTATING ELECTRIC MACHINE COMPRISING A THERMAL PROTECTION MODULE

Legal Events

Date Code Title Description
AS Assignment

Owner name: MITSUBISHI DENKI KABUSHIKI KAISHA, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:IKEDA, HIROHIDE;REEL/FRAME:013472/0720

Effective date: 20021009

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

STCF Information on status: patent grant

Free format text: PATENTED CASE

FPAY Fee payment

Year of fee payment: 4

FPAY Fee payment

Year of fee payment: 8

FPAY Fee payment

Year of fee payment: 12

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载